Combined coal mining and loading machine



April 22, 1930.

5. cl MORGAN COMBINED COAL MINING AND LOADING MACHINE Original Filed Dec. 5, 1 8 Sheets-Sheet vwewfoz dmzzndjlfor gan April 22, 1930. E. c. MORGAN 5 3 COMBJINED COAL MINING AND LOADING MACHINE Original Filed Dec. 3;- 1919 8 Sheets-Sheet 2 E. c. MORGAN 1,755,331

Original Filed Dec. 3. 1 8 Sheets-Sheet 3 5mm w 2w m I w 1 z Q IL w Q flv Y mQN I m a April 22, 1930.

v COMBINED COAL MINING AND LOADING MACHINE N Q N /////7/ lI/l 1; 4!!! llf/fflff'lf/ffl/ E. c. MORGAN 1.755,331

COMBINED COAL MINING AND LOADING MACHINE 8 Sheets-Sheet 4 April 22, 1930.

Original Filed Dec. 3, 1919' Q I avwwto c clwwz C 77/ anyone,

April 22, 1930. E. c. MORGAN v COMBINED COAL MINING AND LOADING MACHINE Original Eiled Dec. 5. 1919 8 Sheets-Sheet 5 $9M ///////Fifi//////////////////////r lggll Ap 2, 1930. v E; c. MORGAN 55, 1,

COMBINED COAL MINING-AND LOADINGMACHINE I Original Filed Dec/3. 1919 Q 8 Sheets-Sheet 6v rzo 4 Suva wife;

8 Sheets-Sheet 7 April 22, 1930. c, R

' COMBINED COAL'MINING 5ND LOAYDING MACHINE Or ig ina l Filed Dec. 3, 1919 .mxtsw @wx 5 @LV QWZW Hume, v 2 1.

April 22, 1930. E. c. MORGAN COMBINED COAL MINING AND LOADING MACHINE Original F iled Dec. 3, 1919 8 Sheets-Sheet 8 Patented Apr. 22, 1930 I UNITED S TAfTES PATEN'FOIFFICE EDMUND C. MORGAN, OF, NEW YORK, N. Y.-;. OLIVE EUGENIE MORGAN 'SAID EDMUND C. MORGAN, DECEASED nxncumrx or COMBINED coin. MINING AND LOADINGWMACHINE Application filed December a, 1919, Serial My invention relates to improvements in combined coalnlining andloading machines and the object of the improvement is to pro: vide an efficient machine for the purpose. a vI attain this object by the mechanism illustrated in the accompanying drawing, in w-hich t Fig. 1 is aplan view with the top protecting plate and a portion of the beams for sup-v porting the plate broken away to enable the parts to beshown to better advantagey Fig. 2 is aside elevationof the machine in which'the top protecting plate and the supporting beams are shown in full;

show adjustment of some of the parts; Fig. 4 is an enlarged view of the rear vportion of the machine, partly in elevation;

Fig. 5 is an enlarged sectio'nalelevation of the supporting framework; f

Figs. (Sand 7 are enlarged elevationsof the two upper superposed kerf-cutters at the forward end of the machine;

- Fig. 8 is an enlarged sectional elevatlon .of

the kerf-cutting mechanism and conveyer mechanism at thefioor at the forward end of the machine; v

Fig. 9 isan enlarged sectional elevation of a portion of 8;

Figs. lO'aud 11 are'detail views of the slack conveyer mechanism, Fig. 10 being a sectional plan view and Fig, 11 a sectional elevation; I

Fig. 12 is an enlarged sectional elevation of the mechanism for driving the floor 'kerfcutter;

Fig. .13 is anenlarged sectional elevation of one of the-adjustable elevated suspended kerfcutters; 40 Fig.'14 is a plan view of one of the elevated suspended kerf-cutters;

Fig. 15 is a plan view of one of the coal breakers which is associated with each of theupper suspended kerf-cutters; and

Fig. 16 is a sectional elevation on the lme 16-16 of Fig. 15 corresponding to. the position indicated bythe line 16 -16-ofFig. 1.

Similar numerals refer to similar parts throughout the several views. Referring to Figures 1 and 2, 4 indicates Fig. 3 is a dist-grammatical illustration to No. 342,218. Renewed February '12, 1930.

the main frame of the machine which is supported on the floor of the mine and adapted to be moved about by means of drive Wheels 5 mounted on the axle 6 which is supported in'..suitable bearings in the main frame and may be arranged to be'driven by'suitable power means, such as an electricmotor of a well. known construction, and the idler wheels 7 -mounted on axle 8 having bearings inthe main frame arranged for vertical adjustment so as to permit the tilting ofthe main frame with the axle 6 as the pivot.

9 indicates belts which may be mounted on a the drive and idler wheels so as .to provide means and conveying means, the conveying means being arranged to-discharge into a hopper formed in the forward portion 10 of the main frame at any position of the travel of the main frame 11. The cutting mechanism carried'onthe frame 11. is designed to form a kerf at the floor of the mine chamber.

Mounted in themain frame 4 on two pairs of posts 12 and 13, which are arranged for vertical adjustment by power, is the framework comprising the beams 14 and 15, and the plate 16. Horizontally pivotally mounted in the forward extending portion of the beams Hand 15 by means of the pivots 17 and 18 r is a ring 19. Mountedinthe ring 19' to re volve through an arc of 180 or more extending forwardlyfrom the main frame 4 is a frame 20 which-may. be arranged tobe revolved'by power means. Carried in the frame 20 and extending outwardly therefrom. is kerf cutting means 21, and a coal breaking means 22. This kerf cutting meansis de signed to form a kerf at the roofof the mine chamber. s

Horizontally pivotally mounted on a frame 23 which is supported by the post 13 and arranged for vertical adjustment thereon is the 1 ring 24 which is similar to the ring 19 referred to above. Mounted in the ring 24 to revolve through an arc of 180 or more extending forwardly from the main frame 4 is a fran1e'25 which may be arranged to revolve by power means. Carried in the frame 25 and extending outwardly therefrom is kerf cutting means 26 and a coal breaking means 27. This kerf cutting means is designed to cut a kerf in the coal vein at some point intermediate the floor and roof kerf cutters as may be desired.

By referring to Figs. 4 and 5 placed end to end, the relation of the various parts of the machine will become clearer. Fig. 5 showsat 4 a reinforcing cross-piece in the frame 4. A motor 105 is connected through worm gearing 106 to the axis 6 to drive the belt tractor shown at 9 in Fig. 2. Instead of having the motor and winding drum 83 and 84 at the rear of the frame 4, it may be at 83 as shown in Fig. 5. i

The roof jack 13 may be slotted at 100 so that the beams 14 and canopy 16 may be adjusted in elevation and secured in adjusted position by the bolt and nut 101. A crosspiece 102 may be provided between the vertical roof jacks 13. The mechanism for operating the roof jacks is shown at 42, 43, 44, 45 in Fig. 2. I

As shown in Fig. 8, a motor 107 may be connected through gearing 108 to the shaft 88' to drive the conveyor 28. The motor 89 as shown in Fig. 1 is connected through the gearing 90 to a sprocket to drive the under-cutting kerf cutter 87.

As shown in Fig. 2, the under-cutting kerf cutter 87 is guided through a chute 39 which inclines upwardly to occupy an elevated position, and so as to deliver the cuttings from the chute 39 to the receiver 38. As shown in Figs. 2 and 9, a motor 40 is mounted on a bracket 117 in position to rotate the shaft 40 which is journaled in the casing 38. As shown in Fig. 10 the shaft 40 is connected to sprocket wheels for driving the bucket conveyor for taking the cuttings out of the receptacle 38 and delivering such cuttings directly to the conveyor 28, the forward horizontal portion of which is within the boundary of the kerf cutter 87, as shown in Figs. 1 and 2.

The details of the slack conveyor meeha-- nism may be varied as desired, but by way of example at what may be used, I have illustrated in Figs. 9 and 10 spaced apart sprocket wheels 118 and 119, secured to the shaft 40.

Spaced-apart endless chains 120 and 121 are 69 connected to the sprocket wheels and extended through suitable guideways 122. Connected between the endless chains are a series of buckets 123 in position to scoop up the cuttings from the bottom of the receptacle 28 and deliver such cuttings to the conveyor 28.

In Figs. 6 and 7, I have shown enlarged elevations of the forward roof kerf-cutter and intermediate kerf-cutter. Fig. 6 shows an elevation of an expansiblc coal breaker 22 and the bracket 94 on which it is mounted. Fig. 7 shows the coal breaker detached from the support 95, which is shown in section.

Suitable conveyors 28, 29 and 30 are a1- rangcd in co-operative relation so as to convey the coal which is dislodged by the cutting means and breaking means described above to the rear of the machine where it may be dumped into the mine cars.

Where the coal vein has no objectionable material the cuttings from the two upper kerf cutting means 21 and 26 may be allowed to fall to the floor conveyor 28, but where dirty bands, such as that indicated by 31, are encountered, the cuttings from either one or both of the upper kerf cutting means may be caught and carried away independently of the loading of the good coal as shown in the illustration. The mechanism as shown is only designed to perform the separation of the cuttings from the kerf cutting means 26. This the machine and are held stationary with respect to one another. The conveyor 32 is mounted in the frame 25 and arranged to discharge into the hopper of the conveyor 33, the center of which is located in line with the pivot of the frame 25% that the conveyor 32 will discharge into the conveyor 33 at any position of the travel of the frame 25. In order that the conveyor 32 may catch substantially all of the cuttings from the kerf cutting means 26 at varying depths of its out in its travel, it is arranged for a horizontal movement on the frame 25 and is provided with a spring 35 to automatically keep the forward receiving end close to the face of the coal underneath the kerf cutting means 26.

The conveyor 28 may be driven by a separate electric motor indicated diagrammatically at 88. In a similar manner the conveyor 32 may be driven by a separate electric motor as diagrammatically illustrated at 57 in Fig. 2. The conveyor 33 may be driven by an electric motor illustrated diagrammatically at 58. The conveyor 29 may be driven by an electric motor illustrated at 97 in Fig. 5 and shown diagrammatically in Fig. 2. The loading conveyor 30 may be driven by an electric motor Where the weight of the machine is not sufiicient to hold it stationary while a cut is being made, the posts 12 and 13 may be run up against the roof and in addition jacks 36 and 37 may be employed to press against the floor, thus firmly anchoring the machine against movement. In order to illustrate the mechanism which can be used for moving the roof jacks 12 and 13 on both sides of the machine against the roof to anchor the main frame 4 during the mining operations, I have shown the roof jack 13 in Fig. 2 as provided with a rack 41 adapted to be engaged by suitable gearing 42 which is connected by worm gearing to a rod 43 extending diagonally downward toward the rear to an other set of worm gearing 44 adapted to be operated by a motor 45. Preferably this motor is an electric motor and it will be seen that by connecting this motor by two sets of worm gearing to the rack 41 the roof jack 13 will be locked in position after the motor 45 stops. A similar electrically operated worm gear transmission may be located on the opposite side of the machine, as shown at 42', 43 and 44 in Fig. 1. It should also be understood that similar electrically operated worm gear transmissions may be applied to the roof jacks 12 on opposite sides of the machine.

In the operation of the machine as described above it will be seen that the several kerf cutting means may be made to travel in parallel planes or in planes at various angles one to the other. It will also be seen by the construction described that objectionable material can be separated from the coal 1n process of mining. It should be particularly noted that the plane of swinging feeding movement of each of the kerf cutters 21 and 26 always remains in fixed relation to the axis of swinging feeding movement of such cutters. For instance, the axis of swinging feeding movement of the cutter 21 is at the center of the ring 20 shown in Fig. 1. This axis is upright and at right angles to the plane of the kerf produced by the kerf cutter 21. The ring 20 fits within the outer ring 19 which is provided with trunnions at 17 and 18 for swinging movement on a lateral axis while supported by the longitudinal roof beams 14 and 15 which in turn are supported by the roof jacks 13.

Preferably a wide protecting plate 16 extends forward to a position adjacent the upper end of a mine wall so as to cover the protruding portion of the kerf cutter 21, as shown in Fig. 2. That is to say, the plate lfi supported on the spaced-apart beams 14 and 15 occupies a position close to the roof so as to coversubstantially all of the operating parts of the machine and thereby protect the same against material which'may fall. from the roof. In order to adapt the beams 14 and 15 and the plate 16 mounted thereon to varying inclinations of the roof as compared with the floor, the beams 14 and 15 are pivotally mounted on the roof jacks 13, as indicated at 46 in Fig. 2.

As illustrated diagrammatically at 47 in Fig. 2 manual mechanism may be provided for tilting the ring 19 on its trunnions at 17 and 18 and thus tilt thekerf cutter 21 up bodily as a unit. In order to swing this unit on the center of the ring 20 as an axis a motor 50 is mounted on the frame 20 as shown in Fig. 2, and geared at 51 to an inner annular gear on the bearing ring 19. After the latter has been adjusted by means of the wheel 47 on the trunnions 17 and 18 this ring 19 remains stationary. Therefore when the motor 50 is operated to drive the gearing 51 the kerf cutter 21 will be fed in an are on an upright axis which is at the center of the'ring 20 or of the ring 19. This axis may be inclined toward or away from the'mine wall or be vertical, but in any event the kerf cut by the kerf cutter 21 will be in a plane at right angles to such axis. If the inclination of the cutter were varied while the axis of feeding movement remained the same relative to the unmined mass the cutter would'tend to move conicallyl which would produce considerable cuttings and might cause the cutter to bind in the kerf which it was attempting to produce. By maintainingthe axis of feeding movement at right angles to the plane of the kerf cutter, as shown in the drawings, there will be no tendency for conical feeding movement and thekerf will remain substantially of the same width and in the same plane throughout.

The kerf cutter 26 is also mounted for a swinging feeding movement on an upright axis which always remains at right angles to the plane of the kerf cutter. The ring 24 of Fig. 2 corresponds to the ring 19 of Fig. 1

The motor 48,

and is also mounted in trunnions, as indifeeding movement of the frame 25 and the lcerf cutter 26 on an upright axis which is at the center of the ring 24. The latter is adapt- 1 ed to receive a ring corresponding to that shown at 20 in Fig. 1, which is connected rigidly to the frame 25.

While the conveyer 32 is suspended by the position to be engaged by bracket 56 from beneath the frame 25 an electric motor 57 is adapted to operate the conveyer in its various positions relative to the kerf cutter 26. The conveyer 38 is adapted to be operated by a motor illustrated diagrammatically at 58. This conveyor 83 may be suspended from the beams 14:. 15 and the frame 23 by means of links, as illustrated at 59, 60 and 61 in Fig. 2. The rear conveyer 34 is adapted to be suspended from the beams 14 and 15 by means of the links 62 and 63, and this conveyer is adapted to be operated by the motor illustrated diagrammatically at 64;.

The rear conveyer 30 is provided with a main frame 65 and. an auxiliary frame 66 pivoted at 67 to the frame 65. By means of the wheel 68 the rear section of the conveyer 30 may be swung on the axis 67 so as to adjust the elevation of the delivery end of the conveyer. The conveyer 30 may be operated by a motor illustrated diagrammatically at 69.

A buffer may be provided at the lower rear central portion of the conveyer frame 65 in the projecting coupling mechanism of a mine car. Such a buffer may comprise a cylindrical head 7 0 provided with a forwardly extending rod 71 extending through brackets 72 and 73 between which is located a spring 7 L. When a mine car 75 is moved along the mine track its forward coupling device 7 6 will engage the buffer and thus stop the mine car without shock or jar to the mining and loading machine.

The mine car shown at 77 in Fi 1 is located on a mine track 78, as shown in Fig. 1. Another mine track 79 is laid along the other side of the mine to receive an empty car as soon as the car 77 has been filled with foreign material. When the car 77 has been loaded the rear conveyer 34 may be readily swung into position for directing foreign material into a mine car on the track 79. It should also be noted that when a car 7 5 on the central mine track 80 has been filled with coal the rear conveyer 30 may be swung on its upright axis 81, 82 so as to direct the coal into a mine car on either track 78 or the track 79. It should be particularly noted that by swinging the kerf cutters the dislodging mechanism and the forward conveyer 28 through an an le of 180 degrees or more from one side v of the mine chamber to the other a wide entry is continuously being made so that not only the mine track 80 may be extended forward from time to time, but tracks 78 and 79 on both sides of the track 80 may be laid and extended forward from time to time in accordance with the continuance of the mining operations;

In order to avoid the necessity of extending the track 80 at frequent intervals the mining and loading machine is provided with the endless belt traction mechanism illustrated at 9, 9 in the drawin s. The mining machine may be propelled along the mine floor in advance of the track 80 a considerable distance before the track 80 need be extended forward. For instance, the track 80 may first be laid up close to the rear end of frame 4 and then the mining and loading machine moved forward step by step in accordance with the mining operations until the mine car 7 5 eouldno longer be moved forward to receive coal from the conveyor 30 without running off the track 80. At 83 I have diagrammatically illustrated a motor for operating rope-winding mechanism 84 for the rope sections illustrated at 85 in Fig. 2, these rope sections being secured to the forward portion of the ring frame 86 on which is mounted the frame 11 carrying the lowermost kerf cutter or under cutter 87 and the conveyer 28. The latter is adapted to be operated by an electric motor illustrated dia' grammatically at 88. The kerf cutter 87 is 7 adapted to be driven by a motor 89 geared to the kerfcutter, as shown at 90 in Fig. 1. The frame 11 may be provided with a scoop 91 in position to scoop up the cuttings deposited on the mine floor by the emerging portion of the kerf cutter 87. .The scoop 91 is adapted to discharge the cuttings into the chute 89 and thenceonto the conveyer 38 which is adapted to be operated by an electric motor 10. The conveyer 38 may be i..- shaped so as to have a vertical portion extending to the motor l0 and a horizontal por tion beneath the opening of the chute 39, the upper horizontal portion of the conveyer 38 being adapted to travel to a position above the conveyer 38, as shown in Fig. 1. It should also be noted that the kerf cutter 87 travels from the scoop 91 along the chute 39 so as to actually convey the cuttings along the chute and then up an incline so as to deposit such cuttings on top of the horizontal traveling portion to the conveyer 38.

WVhile the motor 89 drives the kerf cutter 87 the latter, together with the conveyer 28, may be swung by means of the ropes 85 on the center of the ring 86 as an axis, concentrically with the circular shaped hopperIO so that the conveyer 28 will be in delivery communication with this hopper throughout the range of feeding movement of the cutter 87 from one mine wall to the other which is an angular movement of approximately 180 degrees.

It should also be noted that by means of the mechanism for tilting the frame 4 on the axle 6 as an axis the kerf cutter 87 may be tilted, together with its axis of swinging movement, so that the plane of the cutter will always be at right angles to such axis. I have illustrated diagrammatically at 92 a screw-threaded rod mounted on the axle 8. A motor and worm gearing may be provided as illustrated at 93 in Fig. 2 to tilt the frame 4: on the axle 6 as an axis and thus change sible breaking devices 22 and 27. These breaking devices are respectively mounted on frames 94 and 95. The frame 94'is rigidly connected to the auxiliary frame 20 and the frame 95 is rigidly connected to the frame 25. ,The breaking devices being thus in fixed re lation to the frame which supports them the mechanism for operating such breaking devices may be mounted on such supporting frames to move bodily therewith. The breaking devices'22, for instance, may be op erated by means of a hydraulic pump connected thereto by suitable piping connections mounted on the frame 94, the pump and the electric motor for operating the same being mounted on the frame20 between the ring 19 and the rear end of the kerf cutter 21. In the same manner the hydraulic expansible breaking device 27 may be provided with suitable piping connectionsmounted on they frame 95 and leading to a hydraulic. pump and an electric motor for operating the same;

both mounted on the frame 25 in advance 7 of the ring 24. The breaking down of "the coal need not be interfered with by the opera-- tion of removing the dirty band 31 between the upper and lower veins of coal because the kerf cutter 26 will remove this foreign material and the latter will be conveyed into a mine car 77 on the side track 78 while the coal is being dislodged by the breakers 22 and 27 and the coal is being conveyed to they mine car 75 by the 'conveyers' 28, 29 and 30. Having described my invention and the preferred mechanismembodying the same, I

1. In a mining machine, the combination v with a portable supporting frame, of a plurality of spaced-apart kerf-cutters, a plurality of cutter carrying frames one for each of said kerf-cutters mounted on said supporting frame in superposed co-operative relation to support said kerf-cutters for 'arcuate move ment in the same general direction on approximately the same upright axis to cut kerfs in advance of a. mining 'machine along an'upright mine wall, means for adjusting the up,

positions to cut either in superposed parallel planes or in planes,v intersecting each other along such upri ht mine wall in advance of said supporting frame, and means for operating said kerf-cutters so that each will cut in a plane at right anglesto its upright axis of feeding movement: v i

2. In a machine of the class' described a main frame tiltab'lymounted, a kerf cutter carrying frame pivotally mounted on said main frameto revolve in afixed path with respect to said main frame, a supplemental frame mounted on said main frame for vertical adjustment with respect thereto, a kerf cutter carrying frame pivotally mountedon said'supplemental frame to revolve in the same general direction as the first mentioned kerf cutter carrying frame, and means for shifting the pivot of the said kerf cutter carrying frame at its support on said supplemental frame to permit it to revolve in p tical adjustment with respect thereto, a kerf cutter carrying frame pivotally'mounted on said supplementalframe torevolve in the same general direction as the first mentioned kerf cutter carrying frame, and means for shifting the pivot of the said kerf cutter carrying frame at its support on said supplemental'frame to permit it to revolve in planes at an angleto the plane of movement of the kerf cutter carrying frame mounted on the said main frame, a third kerf cutter carrying frame supported by said main frame and adjustable to travel in a plane parallel to the plane of travel of the other kerf cutter carrying frames or in a plane at an angle to the plane of travel of the other kerf cutter carrying frames. v

4. In a minin and loadingv machine, the combination wit a supporting frame, of

' mechanism mounted on said supporting .frame in position to' operate on an upright mine wall to automatically mine and load coal from its native bed, means mounted on said frame in positionto automatically mine foreign material from a band in the coal vein intermediate the floor and the roof of --the mine chamber without interfering with the separate operation of the mining and loading of the coal, and means mounted on said frame in position for separately loading such foreign material independently of the load ing of the coal so as not to be mixed therewith --:"while the coal is being mined and loaded.

5,:In a mining and loading machine, the combination with a supporting frame, of mining and loading apparatus mounted on said supporting frame and comprisin a kerfcutterIfor cutting, a kerf along the mlne vein, an. additional kerf-cutter mounted on said frame in position to out foreign material from a dirty bandin the coal vein spaced from the kerf cutiby said first-named kerfcutter, and conveying mechanism mounted on said frame in association with said additional kerf-cutter to convey the foreign material dislodged thereby to a separate loading anes at'an angle to the ,plane'of movement of the position so as not to mix with the mineral in continuation of such roof.

7. In a mining machine, the combination with a supporting frame adapted to extend in advance of the mine track adjacent an upright mine wall, of kerf-cutting mechanism mounted on said supporting frame to extend in advance thereof in position to cut a kerf approximately in the plane of the floor of the mine chamber, additional kerf-cutting mechanism adjustably mounted on said supporting frame to cut a kerf approximately in a plane of the roof of the mine chamber and above the floor kerf, intermediate kerf-cutting mechanism mounted on said supporting frameto extend in advance thereof in position to cut a kerf in a plane between the floor and roof of the mine chamber, said kerf-cutting mechanisms being mounted on said frame in cooperative relation to each other to cut superposed kerfs in the mine wall in advance of said supporting frame, means individual to each of said kerf-cutting mechanisms to operate the same as separate independent units but cooperating with each other to out such superposed kerfs in said mine wall.

8. A mining and loading machine comprising a supporting frame, coal mining mecha nism mounted thereon and projecting in advance thereof in position for operation on an upright mine wall, supplemental mining mechanism mounted on said frame in position to operate on such mine wall intermediate the floor and the roof of the mine chamber to remove foreign material from a dirty band in the mine vein, and conveyer mechanism mounted on said frame inassociation with said supplemental mining mechanism in position to receive the foreign material dislodged thereby and convey such foreign material rearwardly along said supporting frame and off to one side thereof.

9. In 'a mining machine, the combination with a supporting frame, of kerf-cutting mechanism mounted thereon to extend in advance thereof in position to operate on the upright wall of a coal vein, supplemental kerf-cutting mechanism mounted on said frame in position to operate on such wall to cut a dirty band therefrom, and conveyer mechanism mounted on said frame in position to receive the cuttings of foreign ma- ,terial from said supplemental kerf-cutting mechanism and transfer such cuttings to a upright mine wall in advance of the miningmachine and individual to each of said kerfcutters for adjusting the inclination thereof for maintaining the plane of the swinging feedlng movement at right angles to its line 8 of feeding movement, and individual motors connected to the respective kerf-cutters to drive the latter and feeding the same at their adjusted inclination to cut superposed kerfs in an upright mine wall in advance of said supporting frame.

11. In a mining machine, the combination with a supporting frame, of a plane chain kerf-cutter, a ring pivoted to said frame for adjustment relative thereto on a horizontal I transverse axis, a cutter carrying frame for sa1d kerf-cutter, a clrcular extenslon on sa1d cutter carrying framefittmg into a clrcular bearing in said ring, a motor on said exten sion connected to said kerf-cutter to drive the same, and a separate motor connected between said cutter carrying frame and said I ring to swing the kerf-cutter concentrically of said ring.

12. In a mining machine, the combination with a frame, of an elongated plane chainy kerf cutter mounted at one end of said frame,

a circular extension at the other end of said frame, means comprising a motor on said frame for driving said kerf cutter, an annular bearing support for receiving sa1d circular extenslon, means for supporting sa1d circu- I larextension for suspension below said annular bearlng and power transmission mechanism comprising an additional motor for 1 swlnging sa1d kerf cutter on an axis at right angles to the plane kerf out by said cutter.

13. In 'a mining machine, the combination with a portable supporting frame adapted to move along a mine chamber to a position ad- 1 j acent an upright working face at the headingof such mine chamber, of a plurality of plane chain kerf-cutters, means for mounting said chain kerf-cutters on said supporting frame in superposed co-operative relation in advance of said supporting frame to cut simultaneously spaced-apart plane kerfs across such heading, such mounting means comprising individual pivotal supports for said kerf-cutters for adjustments on superosed axes each extending transversely to the ongitudinal length of the machine, and mechanism for individually adjusting the upright axes of swinging feeding movements of said plane kerf-cutters.

14. In a mining machine,tl1e combination withfa-supporting'frame, of a plurality of,

1 in elevation relatively thereto andj-pivotally plane kerf-cutters adapted .to operate" on an upright mine wall, means for mounting said kerfcutters on said supporting frame in superposed co-operativej I relation each to swing on an. individual axis through ana-ngle of l80 degrees or morefrom one side of the minechamber to the other side thereof and in advance of the forward end of saidsu-pport-, ing frame at such upright mine wall, and

to the longitudinal length'of said supporting framezwhile maintaining its axis offswinging movement atright anglesto the plane of the V Zkerfrcut' by the corresponding kerf-cutter.

15'. In a mining machine, the combination witha' main frame,'ofra plurality of spacedapart roof jacks therefor,a canopysupported by said roofIjacks in position'to span the space at the roof .abovesaid main frame, and kerf cutting mechanism mounted I in ,position to cut a kerfapproximately. in thetplane of the roof inzadvance of said canopyl '1 T 16. In aimining' mach'ne, the combination with amain frame, of spaced-apart roofjacks mounted thereon,-vlongitudinal. spaced-apart Joeams respectively mountedon sa-idroof jacks and movable upwardly therewithto a ,posi; ,tion adjacent thereof and spanning the same above-said main frame, and ker'f-cutting mechanism carried by said beams in position tocut 1a kerf approximatelyiin the planeof saidroof;

. 17 Ina miningmachine, thelcombination' with at main frame, of. spaced-apart roof 'rjacks, spaced-apart longitudinal fbeams respeetivelypivoted to sa-id roof jacks and car-' ried upwardlylthereby, a plate carried by 1 said beamsiinposition tospan,s idlroof and engage .the latter to-support e same, and kerf-cutting' mechanism mounted :[on said beamsinpositionto cut a ker'fwin advance'of said plate.approximately inthe plane o'fthe 18. In a miningimachine, the vcombina'ition with a supporting frame,--ofroof-support-.

ing mechanism comprising aplate spanning the roof above said supporting'frame, and kerf-cutting :mechanism' supported by said roof-supporting mechanism-in position to cut a .kerf approximately in .planeof the roof." l9. In a-mining machine,- the combination with a main frame, of a' kerf-cutter carrying frame. pivotally -mounted on said mainframe for arc'uate adjustment 01,1..a horizontal trans verse axis with respect to said-mainframe, a

)kerf-cutter pivoted to said kerf-cutter carrying-frame jfor arcuate feeding, movement laterally on an uprightiax'i's extending, transversely of saidhorizontal axis, another kerf cutter carrying frame spaced: above the ,firstnamed kerf-cutter carrying frame for locationjadjacent the roof, a'isupplemental-fra-me mounted on said-mainframe for adjustment carrying jsaid second-named kerf-cutter carry-ingframe for adj ustment on ahorizontal transverse axis, and an additional kerfscutter pivoted to, said second-namedkerf-cutter car:

rying frame for, lateral feeding movement on an-upright axis extending transversely of the horizontal pivotal axis of saidsecond-named kerf cutter carrying frame. 1

20, Ina mining mach1ne,-the combination wlth a mainframe, of a kerf-cutter mounted on said main frame to swing,,;on an upright axis relatively thereto in' position to cut a kerf atthefloor level of themine chamber,- .a supplemental-frame mounted on said main frame for; vertical adjustment jrelatively said supplemental frame for adjustment of v I saidsecondsnamed kerf-cutter on a horizontal transverse axis to cut'in planes intersect: ing the planeof'cutof theifirst-named kerfcutt er..

In almini'ngial d.loading combination with a-supporting frame,- of elongated mining mechanism mounted thereonto have aswinging feeding. movement relatively theretoron an uprlght axis to gprepare an up- I right mine wall for dislodging the material a:

therefrom to; provide extension of; the mine chamber -equalin,width totwo or more times the .i width of. said supporting ,frame, means mounted on said frame in association with said mining mechanism to sw ng therewith on said upright axis 1n position todlslodge a stratum offoreign jmaterial whilethe coal is being mined, and 'means, in position to receive such dislodged foreign material from the mine Wall and convey it along vsaid supporting *frame'to a IIllIlG, car 'on aside track invthe m ne chamber,

22. In a mining machine, the combination .witha supporting frame,,.of coal mining mechanism mounted thereon for swinging feeding movement through? an angle of 180 degrees or more in advance of theforward end of'said frame across an upright mine wall to provide for the extensionof the mine cham- 'ber of approximately three times the width of said supporting frame, meanson said frame .in position-to mine a stratum of foreign .ma- @terial -from such upright, ,niine Wall, and

means on said frame into-operative relation same away from the mine wall along said frame to a mine caron a side track between one of the lateral mine walls of the mine chamber and saidsupportin frame,

' withv said means for mining foreign material [for loading the latter vby transferring the with a supporting frame adapted to travel on a mine track along the center of a mine cham-- ber, of mining mechanism adapted todislodge a crescent-shaped mass of coal from an upright mine wall in advance ofthe mine track and toward both sides of the end thereof, means on said frame in position to mine a stratum of foreign material from the mine vein and in such crescent-shaped mass, and loading mechanism on said frame in co-operative relation with said means for mining foreign material for transferring the latter from the mine wall along said frame into a mine car on a side track in said mine chamber.

24. In a mining and loading machine," the combination with supporting frame-work, of a chain kerf-cutter mounted thereon in position to cut a kerf in an elevated position, a a conveyor adapted to receive cuttings from said kerf-cutter, and means forholding the receiving end of said conveyor against the mine wall in position adjacent said kerf cutter to receive the cuttings while said kerfcutterprojects at varying distances into the mine wall. 1 j 1 l u 25. In a mining and loading'machine, the combination with supporting frame-work, of a chain kerf cutter mounted thereon in position to-cut a kerf in an elevated position, a conveyer adapted to receive the cuttings from said kerf cutter, and means for yieldingly holding the receiving end of said conveyer against the mine wall in an elevated position adjacent said kerf cutter to receive the cuttings while said kerf cutter projects at varying distances into the mine wall. i

26. In a mining and loading machine. the

combination with supporting frame-work, of 7 an elongated chain kerf cutter mounted thereon, a self-contained conveyer supported on said frame-work with its receiving end adj acent the emerging run of said chain kerf cutter toreceive the cuttings therefrom, and a spring foriyieldingly holding the receiving end of said'conveyer against the mine wall in position to receive such cuttings while said kerf cutter extends atvarying distances into the mine walL- r 27. In a mining and loading machine, the combinationwith'a main frame, of a supplemental frame'pivotally connected" to said main frame for-movement up and downon a horizontal transverse axis, a chain kerf cutter mounted on said supplemental frame,

a conve'yer supported by said supplemental,

frame with its receiving end in positon to collect the cuttings from said kerf cutter, and means for yieldingly holding. said conveyor against the mine wall while said kerffcutter projects varying distances into the mine wall;

28. In a mining and loading machine, the combination with a main frame,-of a kerfc1itter,- a supplmental frame for supporting said kerf cutter, means for supportin'g sa-id supplemental frame on said main-frame for swinging feeding movement on an upright axis permanently at right angles to the plane of the kerf cut by said'kerf cutter andforup and down tilting movements onxa horizontal transverse axis, a conveyer mounted onsaid supplemental frame with its receiving end in position to receive the cuttings from said kerf cutter, and means between saidsupplemental frame and said conveyor for yleldmgly hold-' in g thereceiving end thereof against the mine wall while said kerf cutter projects varying wheels,a traveling chain kerf cutter mounted on the forward end of .said mainframe to swing on an upright axis through an angle of 180 or more; to cut a kerf approximately in the plane of the floor of the mine chamber, a conveyer having .a receiving portion within the boundary of saidtkerf cutter, ahoppe'r on the forward end of s'aidframe and in deliverycommunication with the delivery end of said. conveyer throughout its lateral. move- ;ment, and an additional conveyenon said, mam frame with 1ts receiving endin said hopper.- a 1 I 7-1 a 30. In amining machine, the combination with a supporting frame, of mining mechanism mounted thereon, loading apparatus mounted on said frame forreceiving material from said mining mechanism as dislodged and delivering the same to amine car, a chain kerf-cutter mounted on 'said supporting a frame in position for removinga bandof foreign material from the mine vein, and supplemental loading apparatus mounted on said frame in association with said kerf-cutter for receiving. dislodged foreign material it and transferring the latter along said frame to a position separated fromsaid mine car to secure separate loading of the mineral and foreign materialfrom-the working face of the minevein i I 31.v In a mining. machine, the combination with a supporting frame, of mining'mechanism mounted'fthereon, loading apparatus mounted on said supporting frame inassociation with said mining mechanism, supplemental mining mechanismon said supporting frame in an elevated position for'removing a band of foreign material from themine vein substantially abovethe floor'level, and

"supplemental loading apparatus mounted on said supporting frame in -associationwith said supplemental mining mechanism in positi onitdreceivethe dislodged foreign materialeandzt-ransfer the same along saidsupportof a coal vein, loading apparatus mounted on said frame in position to automatically receive the mined coal and convey it toward loading position, a traveling chain-cutter mounted on said frame in elevated position to remove a band of foreign material from such upright-Working fa-ceat the same time that said mining mechanism is operating, and additional loading apparatus mounted on said frame in elevated position adjacent said outter to automatically receive the dislodged foreign material and transfer such foreign material along said frame for discharge at one side of said supporting frame so asnot to mix with the said mined coal.

33. In a mining machine, the combination with a frame, of a. chain cutter. mounted thereon to travel in a horizontal plane along the cutting runs thereof and at an elevation along the return portion, a main conveyer mounted on said frame, a chute for directing the cuttings from the chain cutter to the elevated portion of its travel, and a supplemental conveyer at such elevated portion in position to receive the cuttings and deliver the same to saidmain. conveyer.

34. In a mining machine, the combination with mining and loading apparatus comprising a kerf-cutter for cutting a kerf along the mine vein,.of an additional elevatedv kerfcutter for mining foreign material from the coal vein in a position elevated above the base of the mine wall, and means for separately loading such foreign material without interfering with the operation of said mining and loading apparatus.

35. In a mining machine, the combination with a supporting frame, of a plurality of mining mechanisms comprisin kerf-cutters mounted on said frame in position to operate simultaneously on an uprightcoal wall in a mine chamber to cut spaced-apart kerfs each extending in a general horizontal direction, and a plurality of conveying devices associated respectively with said mining. mechanisms to simultaneously convey the dislodged material to separate loading positions.

36. In a mining and loading machine, the combination with a' supporting frame, of

means mounted on said frame for mining coal in comparatively large pieces, means also mounted on said frame in position to mine foreign material from the body of the coal vein, and separate loading mechanisms each comprising a traveling conveyor having superposed positions traveling in opposite directions mounted on said frame one for loading the minedcoal and the other for loading the mined foreign material so as not to mix with the coal loaded.

37. In a mining machine, the combination with a chain kerf-cutter, of an endless travelling conveyor with its receiving end within the boundary of said chain kerf-cutter, a chute associated with said chain kerf-cutter to receive cuttings from the latter, and'means for delivering such cuttings directly'to the receiving end'of said conveyor.

38. In a mining machine, the combination with a chain kerf-cutter, of a conveyor with its receiving end within the boundary of said chain kerf cutter, and means for collecting the cuttings from said kerf-cutter and delivering such cuttings ontop of the receiving end of said conveyor.

39. In a mining machine, the combinationwitha cutter-frame, of an endless chain cutter mounted thereon, a conveyor having its receiving end within the boundary of said chain cutter, a chute for receiving'cutt-ings from said chain cutter and directing such cuttings to an elevation, a receptacle for receiving said cuttlngs, and automatic coal-operating mechanism for taking such cuttings from said receptacle and delivering them to the receiving end of said conveyor.

40. In a mining and loading machine, the combination with a supporting frame, of cutting mechanism mounted thereon, a conveyer mounted on said frame in position to receive cuttings from said cutting mechanism, and means for holding the receiving end of said conveyer against the mine wall in asubstantially elevated position to receive the cuttings while said cutting mechanism projects at varying distances into the mine Wall. 7

41. In a mining machine, the combination with a supporting frame, of mining mechanism adapted to operate on an upright coal mine wall to prepare the same for dislodging' the coal therefromto provide extension of the mine chamber wider than the width of the I.

said frame, loading apparatus for the dislodgedjcoal, means for dislodging a stratum of foreign material while the coal is beingv mined, and means mounted on said frame in position to receive'the forelgn material and convey the same away from the mine wall so as not to be mixed with mined coal.

42. Ina mining and loading machine-,the combination with a supporting frame,-,-ofa] kerf-cutter mounted thereon, and means for yieldingly holding the receiving end of said .kerf-cutter mounted thereon, for adjustment I relatively thereto on a horizontal. transverse;-; axis and on an upright axis means'for opera flat breaker mounted on said kerf-cutter to move bodily therewith into the kerf produced thereby to always lie in the plane of said 'kerf-cutter for operation in such kerf independently of the feed of said kerf-cutter.

45. In a mining machine, the combination with a main frame, of roof jack mechanism therefor, a canopy supported by said roof jack mechanism to span and cover the space at the roof above said main frame, and mining mechanism supported by said roof jack mechanism for adjustment in elevation together with said canopy,

46. In a mining machine, the combination a with a main frame, of roof jack mechanism 47. with a main frame, of means comprising on both sides of said'frame, a canopy supported on said roof jacks at the roof to span and cover thespace above said main frame and extending forwardly from the upper forward end of said frame, and kerf-cutting I mechanism also supported by said roof jack mechanism for adjustment in elevation therewith andfor operation approximately in the plane of the roof in advance of said canopy. In a mining machine, the combination spaced-apart endless traction treads for moving the machine over the mine floor and supporting the same thereon, roof jacks on said main frame to cooperate with said treads to anchor the machine in stationary position, and mining mechanism mounted on the forward end of said main frame in position to operate on an upright mine Wall while said frame remains anchored.

48. In a mining machine, the combination with a main frame, of transporting means therefor comprising a pair of endless traction treads one on each side of the main frame, roofjack mechanism at the sides of the main frame directly above the respective traction treads to co-operate therewith in anchoring the main frame to holdit stationary, and mining mechanism on the forward end of said main frame in position to operate on an upright mine wall while said main frame is thus anchored in stationary position.

49. In a mining machine, the combination with a supporting frame, of spaced-apart traction treads for said supporting frame, spaced-apart roof jacks one above each of said traction treads, mining mechanism mounted on said frame for swinging .movement relatively thereto on an upright axis, and means for operating said mining mechanism.

EDMUND C. MORGAN. 

